I am beginning to accept the fact that I will have to have some type of noise reduction plan to run on certain tracks in my area. Having searched these pages, there are a number of good discussions. However, most discussions focus on the tactic of changing the side pipe exit so that the noise is directed downward, but I don't think that will suffice for all situations.

I presume that the Challenge car side pipes are without any form of internal muffling. However, the standard roadster side pipes should, including the optional stainless ones - basically a glass-pack style straight through design, of course.

Does anyone know:
1. what the db reading of a standard, unmuffled Challenge car side pipe is at WOT?
2. what performance reduction the muffled FFR side pipes cause?

Thanks,

Bill